All plant-based foods, whole-foods or not, have lower emissions than animal products
EDIT with a source:
Transitioning to plant-based diets (PBDs) has the potential to reduce diet-related land use by 76%, diet-related greenhouse gas emissions by 49%, eutrophication by 49%, and green and blue water use by 21% and 14%, respectively, whilst garnering substantial health co-benefits
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Plant-based foods have a significantly smaller footprint on the environment than animal-based foods. Even the least sustainable vegetables and cereals cause less environmental harm than the lowest impact meat and dairy products [9].
All plant-based foods, whole-foods or not, have lower emissions than animal products
EDIT with a source:
https://www.mdpi.com/2072-6643/14/8/1614/htm